1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_VIEWS_CONTROLS_NATIVE_NATIVE_VIEW_HOST_AURA_H_
#define UI_VIEWS_CONTROLS_NATIVE_NATIVE_VIEW_HOST_AURA_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "ui/aura/window_observer.h"
#include "ui/gfx/geometry/rounded_corners_f.h"
#include "ui/gfx/geometry/transform.h"
#include "ui/views/controls/native/native_view_host_wrapper.h"
#include "ui/views/views_export.h"
namespace aura {
class Window;
} // namespace aura
namespace views {
class NativeViewHost;
// Aura implementation of NativeViewHostWrapper.
class NativeViewHostAura : public NativeViewHostWrapper,
public aura::WindowObserver {
public:
explicit NativeViewHostAura(NativeViewHost* host);
NativeViewHostAura(const NativeViewHostAura&) = delete;
NativeViewHostAura& operator=(const NativeViewHostAura&) = delete;
~NativeViewHostAura() override;
// Overridden from NativeViewHostWrapper:
void AttachNativeView() override;
void NativeViewDetaching(bool destroyed) override;
void AddedToWidget() override;
void RemovedFromWidget() override;
bool SetCornerRadii(const gfx::RoundedCornersF& corner_radii) override;
void SetHitTestTopInset(int top_inset) override;
int GetHitTestTopInset() const override;
void InstallClip(int x, int y, int w, int h) override;
bool HasInstalledClip() override;
void UninstallClip() override;
void ShowWidget(int x, int y, int w, int h, int native_w, int native_h)
override;
void HideWidget() override;
void SetFocus() override;
gfx::NativeView GetNativeViewContainer() const override;
gfx::NativeViewAccessible GetNativeViewAccessible() override;
ui::Cursor GetCursor(int x, int y) override;
void SetVisible(bool visible) override;
void SetParentAccessible(gfx::NativeViewAccessible) override;
gfx::NativeViewAccessible GetParentAccessible() override;
ui::Layer* GetUILayer() override;
private:
friend class NativeViewHostAuraTest;
class ClippingWindowDelegate;
// Overridden from aura::WindowObserver:
void OnWindowDestroying(aura::Window* window) override;
void OnWindowDestroyed(aura::Window* window) override;
void CreateClippingWindow();
// Reparents the native view with the clipping window existing between it and
// its old parent, so that the fast resize path works.
void AddClippingWindow();
// If the native view has been reparented via AddClippingWindow, this call
// undoes it.
void RemoveClippingWindow();
// Sets or updates the |corner_radii_| on the native view's layer.
void ApplyRoundedCorners();
// Updates the top insets of |clipping_window_|.
void UpdateInsets();
// Our associated NativeViewHost.
raw_ptr<NativeViewHost> host_;
std::unique_ptr<ClippingWindowDelegate> clipping_window_delegate_;
// Window that exists between the native view and the parent that allows for
// clipping to occur. This is positioned in the coordinate space of
// host_->GetWidget().
std::unique_ptr<aura::Window> clipping_window_;
std::unique_ptr<gfx::Rect> clip_rect_;
// Holds the corner_radii to be applied.
gfx::RoundedCornersF corner_radii_;
// Set when AttachNativeView() is called. This is the original transform of
// the NativeView's layer. The NativeView's layer may be modified to scale
// when ShowWidget() is called with a native view size not equal to the
// region's size. When NativeViewDetaching() is called, the NativeView's
// transform is restored to this.
gfx::Transform original_transform_;
// True if a transform different from the original was set.
bool original_transform_changed_ = false;
// The top insets to exclude the underlying native view from the target.
int top_inset_ = 0;
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_NATIVE_NATIVE_VIEW_HOST_AURA_H_
|
